This history museum telling the story of Washington State is located in an urban historic district and is directly adjacent to the most historic of Tacoma’s buildings, the old Union Station. Roughly 100,000 square feet in size and $26 million in construction costs, the museum was designed for maximum flexibility of programming, yet with very tight environmental controls for the protection of historic artifacts. Mechanical and electrical systems designed to maintain the proper humidity, temperatures and particulate levels were very important. In addition, security was a high priority and was complicated by the requirement that physical and electronic systems be nearly invisible! Twelve consulting firms overlaying design and technical requirements were coordinated and incorporated under Susan Benz’ direction.